TiKu, if you want to disable this find function bawmrp_get_related_posts and comment this code:
$ids_bonus = $wpdb->get_row( "SELECT group_concat(post_id) as ids FROM $wpdb->postmeta WHERE post_id != {$post_id} AND meta_key='_yyarpp' AND concat(',',meta_value,',') LIKE '%,{$post_id},%'" );
if ( ! is_admin() && reset( $ids_bonus ) ) {
if ( ! is_array( $ids ) ) {
$ids .= ',' . reset( $ids_bonus );
}else{
$ids[] = reset( $ids_bonus );
}
}